Table 4.

Element concentration determined in the meat of the two species of sea snails (mean value ± std. dev.).

		N. mutabilis	H. reticulata
Selenium	µg/100 g	24 ± 7	35 ± 6
Iron	mg/100 g	3.1 ± 2	4.4 ± 3
Calcium	mg/100 g	32 ± 2	33 ± 2
Zinc	mg/100 g	1.7 ± 0.3	1.5 ± 0.5
Magnesium	mg/100 g	51 ± 4	54 ± 6
Potassium	mg/100 g	290 ±13	310 ± 17
Lead	µg/100 g	26 ± 2 B	30 ± 3 A
Cadmium	µg/100 g	31 ± 5 B	42 ± 3 A
Chromium	µg/100 g	26 ± 2 B	36 ± 5 A

A, B = p < 0.01.